
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>APP下载</title>
</head> 
<body>
<style type="text/css">
*{margin:0; padding:0;}
img{max-width: 100%; height: 100%;}
</style>
<div>
<p style="text-align: center">
<a href="http://www.xxxxx.com/down/com.sstx.medic.apk">
<br/><br/><img src="Android.jpg" width="150" height="150">
<br/><font size="5">点击下载</font>
<br/><font size="2">目前仅支持安卓用户，其他用户敬请期待哦</font>
</a>
</p>
</div>
<script type="text/javascript">
function is_weixin() {
    var ua = navigator.userAgent.toLowerCase();
    if (ua.match(/MicroMessenger/i) == "micromessenger") {
        return true;
    } else {
        return false;
    }
}
var isWeixin = is_weixin();
var winHeight = typeof window.innerHeight != 'undefined' ? window.innerHeight : document.documentElement.clientHeight;
function loadHtml(){
var div = document.createElement('div');
div.id = 'weixin-tip';
div.innerHTML = '<p><img src="point.png"/></p>'; //遮罩图片
document.body.appendChild(div);
}
function loadStyleText(cssText) {
        var style = document.createElement('style');
        style.rel = 'stylesheet';
        style.type = 'text/css';
        try {
            style.appendChild(document.createTextNode(cssText));
        } catch (e) {
            style.styleSheet.cssText = cssText; //ie9以下
        }
            var head=document.getElementsByTagName("head")[0]; //head标签之间加上style样式
            head.appendChild(style); 
    }
    var cssText = "#weixin-tip{position: fixed; left:0; top:0; background: rgba(0,0,0,0.8); filter:alpha(opacity=80); width: 100%; height:100%; z-index: 100;} #weixin-tip p{text-align: center; margin-top: 10%; padding:0 5%;}";
if(isWeixin){
loadHtml();
loadStyleText(cssText);
}
</script>
</body>
</html>